{"id":10581,"date":"2026-09-26T11:35:22","date_gmt":"2026-09-26T10:35:22","guid":{"rendered":"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/"},"modified":"2026-09-26T11:35:22","modified_gmt":"2026-09-26T10:35:22","slug":"topic-11-group-17","status":"publish","type":"page","link":"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/","title":{"rendered":"Topic 11 Group 17"},"content":{"rendered":"\n<div class=\"ols-cie11-page\">\n\n  <aside class=\"ols-sidebar\">\n  <div class=\"ols-sidebar-header\">\n    <h3>Revision Notes<\/h3>\n    <p>A Level Chemistry<\/p>\n  <\/div>\n\n  <div class=\"ols-topic-group\">\n    <h4>Topic 11 Group 17<\/h4>\n\n    <ul class=\"ols-topic-list\">\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/\">Topic Overview<\/a>\n      <\/li>\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/trends-in-the-halogens\/\">Trends in the Halogens<\/a>\n      <\/li>\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/halogens-as-oxidising-agents\/\">Halogens as Oxidising Agents<\/a>\n      <\/li>\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/disproportionation-reactions-of-chlorine\/\">Disproportionation Reactions of Chlorine<\/a>\n      <\/li>\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/halide-ions-reducing-agents-and-tests\/\">Halide Ions: Reducing Agents and Tests<\/a>\n      <\/li>\n    <\/ul>\n  <\/div>\n\n  <div class=\"ols-topic-group\">\n    <h4>Other Sections<\/h4>\n\n    <ul class=\"ols-topic-list\">\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-6-electrochemistry\/\">Topic 6 Electrochemistry<\/a>\n      <\/li>\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-10-group-2\/\">Topic 10 Group 2<\/a>\n      <\/li>\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-2-atoms-molecules-and-stoichiometry\/\">Topic 2 Atoms, Molecules and Stoichiometry<\/a>\n      <\/li>\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-9-the-periodic-table-chemical-periodicity\/\">Topic 9 Chemical Periodicity<\/a>\n      <\/li>\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-5-chemical-energetics\/\">Topic 5 Chemical Energetics<\/a>\n      <\/li>\n    <\/ul>\n  <\/div>\n<\/aside>\n\n<script>\r\n(function() {\r\n  function normalisePath(path) {\r\n    return String(path || '')\r\n      .split('?')[0]\r\n      .split('#')[0]\r\n      .replace(\/\\\/+$\/, '')\r\n      .toLowerCase();\r\n  }\r\n\r\n  function highlightActive() {\r\n    var sidebar = document.querySelector('.ols-sidebar');\r\n    if (!sidebar) return false;\r\n\r\n    var currentPath = normalisePath(window.location.pathname);\r\n    var links = sidebar.querySelectorAll('a[href]');\r\n    var matched = null;\r\n    var matchedLength = 0;\r\n\r\n    sidebar.querySelectorAll('.active, .active-main, .parent-active').forEach(function(item) {\r\n      item.classList.remove('active', 'active-main', 'parent-active');\r\n    });\r\n\r\n    sidebar.querySelectorAll('a[data-ols-disabled-parent=\"1\"], a[aria-current]').forEach(function(a) {\r\n      a.removeAttribute('aria-current');\r\n      a.removeAttribute('tabindex');\r\n      a.removeAttribute('data-ols-disabled-parent');\r\n    });\r\n\r\n    links.forEach(function(a) {\r\n      try {\r\n        var href = a.getAttribute('href');\r\n        if (!href || href === '#' || href.charAt(0) === '#') return;\r\n        var linkPath = normalisePath(new URL(href, window.location.origin).pathname);\r\n        if (!linkPath) return;\r\n        if (currentPath === linkPath || currentPath.indexOf(linkPath + '\/') === 0) {\r\n          if (linkPath.length > matchedLength) {\r\n            matched = a;\r\n            matchedLength = linkPath.length;\r\n          }\r\n        }\r\n      } catch(e) {}\r\n    });\r\n\r\n    if (matched) {\r\n      var matchedLi = matched.closest('li');\r\n      var parentSub = matched.closest('.ols-subtopic-list');\r\n\r\n      if (parentSub) {\r\n        if (matchedLi) {\r\n          matchedLi.classList.add('active');\r\n          matched.setAttribute('aria-current', 'page');\r\n        }\r\n\r\n        var parentLi = parentSub.closest('li');\r\n        while (parentLi) {\r\n          parentLi.classList.add('parent-active', 'active-main');\r\n\r\n          var parentLink = parentLi.querySelector(':scope > a');\r\n          if (parentLink) {\r\n            parentLink.setAttribute('aria-current', 'true');\r\n            parentLink.setAttribute('tabindex', '-1');\r\n            parentLink.setAttribute('data-ols-disabled-parent', '1');\r\n          }\r\n\r\n          var higherSub = parentLi.parentElement.closest('.ols-subtopic-list');\r\n          parentLi = higherSub ? higherSub.closest('li') : null;\r\n        }\r\n      } else {\r\n        if (matchedLi) {\r\n          matchedLi.classList.add('parent-active', 'active-main');\r\n          matched.setAttribute('aria-current', 'page');\r\n          matched.setAttribute('tabindex', '-1');\r\n          matched.setAttribute('data-ols-disabled-parent', '1');\r\n        }\r\n      }\r\n    }\r\n\r\n    return true;\r\n  }\r\n\r\n  if (!highlightActive()) {\r\n    document.addEventListener('DOMContentLoaded', highlightActive);\r\n  }\r\n})();\r\n<\/script>\n\n  <style>\n    @import url('https:\/\/fonts.googleapis.com\/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');\n\n    .ols-cie11-page,\n    .ols-cie11-page * { box-sizing: border-box; }\n\n    .ols-cie11-page {\n      --ols-purple: #7c2d12;\n      --ols-purple-2: #9a3412;\n      --ols-accent: #f97316;\n      --ols-soft-purple: #fff7ed;\n      --ols-soft-cream: #fbf7f2;\n      --ols-border: rgba(59, 7, 100, 0.13);\n      --ols-shadow-soft: 0 10px 28px rgba(59, 7, 100, 0.09);\n      --ols-muted: #6b5a52;\n      font-family: \"Poppins\", Arial, sans-serif;\n      color: var(--ols-purple);\n      background: #ffffff;\n    }\n\n    .ols-cie11-page a { color: inherit; text-decoration: none; }\n    .ols-cie11-container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }\n\n    .ols-cie11-breadcrumb-bar { padding: 16px 0 0; }\n    .ols-cie11-breadcrumb { display: flex; flex-wrap: wrap; gap: 6px; font-size: 13px; color: var(--ols-muted); font-weight: 500; }\n    .ols-cie11-breadcrumb a { color: var(--ols-muted); transition: color 0.2s ease; }\n    .ols-cie11-breadcrumb a:hover { color: var(--ols-accent); }\n    .ols-cie11-breadcrumb span { color: var(--ols-purple); font-weight: 700; }\n\n    .ols-cie11-intro {\n      padding: 36px 0 72px;\n      background:\n        radial-gradient(circle at top center, rgba(249, 115, 22, 0.08), transparent 40%),\n        linear-gradient(180deg, #fbf7f2 0%, #ffffff 100%);\n    }\n    .ols-cie11-intro-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }\n    .ols-cie11-eyebrow {\n      display: inline-flex; align-items: center; gap: 9px; padding: 8px 16px; border-radius: 999px;\n      background: #ffffff; border: 1px solid rgba(249, 115, 22, 0.22); color: var(--ols-accent);\n      font-size: 13px; font-weight: 600; box-shadow: 0 6px 18px rgba(59, 7, 100, 0.06); margin-bottom: 20px;\n    }\n    .ols-cie11-eyebrow::before { content: \"\"; width: 7px; height: 7px; border-radius: 50%; background: var(--ols-accent); box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.14); }\n    .ols-cie11-intro h1 { font-size: clamp(34px, 4.5vw, 64px); font-weight: 800; color: var(--ols-purple); letter-spacing: -0.045em; line-height: 1.08; margin: 0 0 10px; text-shadow: -9px 0 9px rgba(59, 7, 100, 0.08); }\n    .ols-cie11-accent-bar { width: 72px; height: 4px; background: var(--ols-accent); border-radius: 999px; margin: 0 0 22px; }\n    .ols-cie11-intro-lead { font-size: clamp(16px, 1.6vw, 19px); font-weight: 300; color: #6b2a0f; line-height: 1.72; margin: 0; }\n\n    .ols-cie11-info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }\n    .ols-cie11-info-card { background: #ffffff; border: 1px solid var(--ols-border); border-radius: 20px; padding: 20px 22px; box-shadow: var(--ols-shadow-soft); }\n    .ols-cie11-info-card-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ols-muted); margin-bottom: 6px; }\n    .ols-cie11-info-card-value { font-size: 22px; font-weight: 800; color: var(--ols-purple); letter-spacing: -0.03em; line-height: 1.1; }\n    .ols-cie11-info-card-sub { font-size: 12px; font-weight: 400; color: var(--ols-muted); margin-top: 3px; }\n\n    .ols-cie11-topics { padding: 72px 0 80px; background: #ffffff; }\n    .ols-cie11-section-header { margin-bottom: 40px; }\n    .ols-cie11-section-title { font-size: clamp(28px, 3vw, 44px); font-weight: 800; color: var(--ols-purple); letter-spacing: -0.04em; line-height: 1.1; margin: 0 0 10px; text-shadow: -9px 0 9px rgba(59, 7, 100, 0.08); }\n    .ols-cie11-section-sub { font-size: 16px; font-weight: 300; color: var(--ols-muted); margin: 0; }\n    .ols-cie11-cards-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }\n\n    .ols-cie11-card {\n      display: flex; flex-direction: column; background: #ffffff; border: 1px solid var(--ols-border);\n      border-radius: 22px; overflow: hidden; box-shadow: var(--ols-shadow-soft); text-decoration: none;\n      color: var(--ols-purple); transition: transform 0.28s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.28s ease, border-color 0.28s ease; position: relative;\n    }\n    .ols-cie11-card.ols-cie11-card--available:hover { transform: translateY(-10px) scale(1.02); box-shadow: 0 28px 56px rgba(59, 7, 100, 0.16); border-color: rgba(249, 115, 22, 0.35); }\n    .ols-cie11-card.ols-cie11-card--available:hover .ols-cie11-card-img-wrap::after { opacity: 1; }\n    .ols-cie11-card-img-wrap { position: relative; width: 100%; aspect-ratio: 4 \/ 3; background: var(--ols-soft-purple); overflow: hidden; }\n    .ols-cie11-card-img-wrap::after { content: \"\"; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(59, 7, 100, 0.18) 100%); opacity: 0; transition: opacity 0.28s ease; z-index: 1; }\n    .ols-cie11-card-num { position: absolute; top: 12px; left: 12px; width: 32px; height: 32px; border-radius: 50%; background: var(--ols-purple); color: #ffffff; font-size: 13px; font-weight: 800; display: flex; align-items: center; justify-content: center; z-index: 3; box-shadow: 0 4px 12px rgba(59, 7, 100, 0.28); }\n    .ols-cie11-card-status { position: absolute; top: 12px; right: 12px; padding: 4px 10px; border-radius: 999px; font-size: 10px; font-weight: 700; z-index: 3; }\n    .ols-cie11-card-status--available { background: #eaf3de; color: #3B6D11; }\n    .ols-cie11-card-body { padding: 18px 18px 22px; flex: 1; display: flex; flex-direction: column; gap: 6px; }\n    .ols-cie11-card-title { font-size: 14px; font-weight: 700; color: var(--ols-purple); line-height: 1.35; margin: 0; }\n    .ols-cie11-card-desc { font-size: 12px; font-weight: 300; color: var(--ols-muted); line-height: 1.6; margin: 0; }\n    .ols-cie11-card-cta { display: inline-flex; align-items: center; gap: 5px; margin-top: 10px; font-size: 12px; font-weight: 700; color: var(--ols-accent); }\n    .ols-cie11-card-cta svg { width: 14px; height: 14px; transition: transform 0.2s ease; }\n    .ols-cie11-card--available:hover .ols-cie11-card-cta svg { transform: translateX(3px); }\n\n    .ols-cie11-visual { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; padding: 32px 24px 24px; overflow: hidden; }\n    .ols-cie11-visual::before, .ols-cie11-visual::after { content: \"\"; position: absolute; border-radius: 999px; opacity: 0.75; filter: blur(1px); }\n    .ols-cie11-visual::before { width: 170px; height: 170px; left: -58px; bottom: -66px; background: rgba(255, 255, 255, 0.35); }\n    .ols-cie11-visual::after { width: 118px; height: 118px; right: -42px; top: -34px; background: rgba(255, 255, 255, 0.28); }\n    .ols-cie11-visual-panel { position: relative; z-index: 2; width: min(82%, 260px); min-height: 118px; border-radius: 24px; border: 1px solid rgba(255, 255, 255, 0.45); background: rgba(255, 255, 255, 0.76); box-shadow: 0 18px 38px rgba(59, 7, 100, 0.18); backdrop-filter: blur(10px); display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 18px; }\n    .ols-cie11-visual-kicker { display: inline-flex; align-items: center; justify-content: center; min-height: 25px; padding: 4px 10px; border-radius: 999px; background: rgba(59, 7, 100, 0.08); color: var(--ols-purple); font-size: 10px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 10px; }\n    .ols-cie11-visual-main { font-size: clamp(23px, 3vw, 32px); font-weight: 800; color: var(--ols-purple); line-height: 1.05; letter-spacing: -0.05em; }\n    .ols-cie11-config-line { display: inline-flex; gap: 7px; margin-top: 12px; flex-wrap: wrap; justify-content: center; }\n    .ols-cie11-config-line span { display: inline-flex; min-width: 42px; justify-content: center; padding: 5px 8px; border-radius: 999px; background: #ffffff; border: 1px solid rgba(59, 7, 100, 0.16); font-size: 11px; font-weight: 800; color: var(--ols-purple); }\n\n    .ols-cie11-visual--ionic { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #fff7ed 0%, #fdba74 45%, #ea580c 100%); }\n    .ols-cie11-visual--covalent { background: radial-gradient(circle at 22% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #fff7ed 0%, #fb923c 45%, #c2410c 100%); }\n    .ols-cie11-visual--shapes { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #ecfeff 0%, #22d3ee 45%, #0e7490 100%); }\n    .ols-cie11-visual--polarity { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #fdf2f8 0%, #f472b6 45%, #be185d 100%); }\n    .ols-cie11-visual--metallic { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #f8fafc 0%, #94a3b8 45%, #334155 100%); }\n    .ols-cie11-visual--giant { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #eefbf3 0%, #86efac 45%, #15803d 100%); }\n    .ols-cie11-visual--molecular { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #eff6ff 0%, #60a5fa 45%, #1d4ed8 100%); }\n    .ols-cie11-visual--forces { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #fefce8 0%, #facc15 45%, #a16207 100%); }\n\n    .ols-cie11-spec-section { padding: 72px 0 88px; background: radial-gradient(circle at top center, rgba(249, 115, 22, 0.07), transparent 38%), linear-gradient(180deg, #fbf7f2 0%, #ffffff 100%); }\n    .ols-cie11-spec-wrap { background: #ffffff; border: 1px solid var(--ols-border); border-radius: 26px; padding: 36px; box-shadow: var(--ols-shadow-soft); }\n    .ols-cie11-spec-pill { display: inline-flex; align-items: center; padding: 7px 14px; border-radius: 999px; background: var(--ols-soft-purple); border: 1px solid rgba(249, 115, 22, 0.22); color: var(--ols-accent); font-size: 12px; font-weight: 700; margin-bottom: 16px; }\n    .ols-cie11-spec-heading { font-size: clamp(24px, 2.8vw, 36px); font-weight: 800; color: var(--ols-purple); letter-spacing: -0.035em; line-height: 1.12; margin: 0 0 6px; border-left: 5px solid var(--ols-accent); padding-left: 16px; }\n    .ols-cie11-spec-intro-text { font-size: 16px; font-weight: 300; color: #4a3a30; line-height: 1.8; margin: 14px 0 26px; }\n    .ols-cie11-spec-group-title { font-size: 20px; font-weight: 800; color: var(--ols-purple); line-height: 1.2; margin: 30px 0 14px; letter-spacing: -0.025em; }\n    .ols-cie11-spec-rows { display: flex; flex-direction: column; gap: 12px; }\n    .ols-cie11-spec-row { display: flex; flex-wrap: nowrap; align-items: stretch; border-radius: 16px; overflow: hidden; box-shadow: 0 4px 12px rgba(0,0,0,0.05); }\n    .ols-cie11-spec-row--light { background: #ffffff; border: 1px solid rgba(249, 115, 22, 0.18); }\n    .ols-cie11-spec-row--mid { background: #fff7ed; border: 1px solid rgba(249, 115, 22, 0.22); }\n    .ols-cie11-spec-code { flex: 0 0 104px; color: #ffffff; font-size: 15px; font-weight: 800; display: flex; align-items: center; justify-content: center; padding: 18px 12px; background: #7c2d12; }\n    .ols-cie11-spec-code--mid { background: #9a3412; }\n    .ols-cie11-spec-text { flex: 1; padding: 16px 20px; font-size: 16px; font-weight: 300; line-height: 1.8; color: #4a3a30; }\n    .ols-cie11-spec-sub-list { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }\n    .ols-cie11-spec-sub-row { display: flex; align-items: stretch; background: #ffffff; border: 1px solid rgba(249, 115, 22, 0.15); border-radius: 12px; overflow: hidden; }\n    .ols-cie11-spec-sub-code { flex: 0 0 74px; background: #fdba74; color: #7c2d12; font-size: 13px; font-weight: 800; display: flex; align-items: center; justify-content: center; padding: 12px 10px; }\n    .ols-cie11-spec-sub-text { flex: 1; padding: 12px 16px; font-size: 15px; font-weight: 300; line-height: 1.8; color: #4b3b58; }\n\n    @media (max-width: 1100px) { .ols-cie11-cards-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }\n    @media (max-width: 860px) { .ols-cie11-intro-inner { grid-template-columns: 1fr; gap: 40px; } }\n    @media (max-width: 640px) {\n      .ols-cie11-intro { padding: 24px 0 52px; }\n      .ols-cie11-topics { padding: 52px 0 58px; }\n      .ols-cie11-cards-grid { grid-template-columns: 1fr; gap: 14px; }\n      .ols-cie11-spec-section { padding: 52px 0 64px; }\n      .ols-cie11-spec-wrap { padding: 24px 18px; border-radius: 20px; }\n      .ols-cie11-info-grid { grid-template-columns: 1fr 1fr; }\n      .ols-cie11-spec-row { flex-direction: column; }\n      .ols-cie11-spec-code { flex: 0 0 auto; min-height: 34px; }\n    }\n  \n    .ols-cie11-visual--bonding { background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 55%, #60a5fa 100%); }\n    .ols-cie11-visual--isomerism { background: linear-gradient(135deg, #4c1d95 0%, #7c3aed 55%, #c4b5fd 100%); }\n    .ols-cie11-visual--mechanism { background: linear-gradient(135deg, #7f1d1d 0%, #dc2626 55%, #fca5a5 100%); }\n    .ols-cie11-visual--reactions { background: linear-gradient(135deg, #78350f 0%, #d97706 55%, #fcd34d 100%); }\n    .ols-cie11-visual--polymer { background: linear-gradient(135deg, #064e3b 0%, #059669 55%, #6ee7b7 100%); }\n    .ols-cie11-visual--waste { background: linear-gradient(135deg, #334155 0%, #64748b 55%, #cbd5e1 100%); }\n    .ols-cie11-visual--alkane { background: linear-gradient(135deg, #1f2937 0%, #4b5563 55%, #9ca3af 100%); }\n    .ols-cie11-visual--naming { background: linear-gradient(135deg, #0f766e 0%, #14b8a6 55%, #99f6e4 100%); }\n    .ols-cie11-card--soon { opacity: 0.62; cursor: default; }\n    .ols-cie11-card-status--soon { background: #e5e7eb; color: #374151; }\n    .ols-cie11-visual--ox { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #fff7ed 0%, #fb923c 45%, #c2410c 100%); }\n    .ols-cie11-visual--et { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #eef2ff 0%, #818cf8 45%, #3730a3 100%); }\n    .ols-cie11-visual--dp { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #fdf2f8 0%, #f472b6 45%, #9d174d 100%); }\n    .ols-cie11-visual--rc { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #f0fdf4 0%, #4ade80 45%, #15803d 100%); }\n    .ols-cie11-visual--tr { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #f0f9ff 0%, #38bdf8 45%, #0369a1 100%); }\n    .ols-cie11-visual--re { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #fff1f2 0%, #fb7185 45%, #be123c 100%); }\n    .ols-cie11-visual--oh { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #f5f3ff 0%, #a78bfa 45%, #6d28d9 100%); }\n    .ols-cie11-visual--so { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #ecfeff 0%, #22d3ee 45%, #0e7490 100%); }\n    .ols-cie11-visual--ts { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #fffbeb 0%, #fbbf24 45%, #b45309 100%); }\n    .ols-cie11-visual--ti { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #f0fdfa 0%, #2dd4bf 45%, #0f766e 100%); }\n    .ols-cie11-visual--tc { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #f8fafc 0%, #94a3b8 45%, #334155 100%); }\n    .ols-cie11-visual--ht { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #ecfdf5 0%, #34d399 45%, #047857 100%); }\n    .ols-cie11-visual--ho { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #fefce8 0%, #facc15 45%, #a16207 100%); }\n    .ols-cie11-visual--cd { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #f0fdf4 0%, #86efac 45%, #166534 100%); }\n    .ols-cie11-visual--hi { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #fdf4ff 0%, #d8b4fe 45%, #7e22ce 100%); }\n  <\/style>\n\n  <!-- BREADCRUMB BAR -->\n  <div class=\"ols-cie11-breadcrumb-bar\">\n    <div class=\"ols-cie11-container\">\n      <nav class=\"ols-cie11-breadcrumb\" aria-label=\"Breadcrumb\">\n          <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/\">Revision Notes<\/a> \/\n          <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/\">A Level Chemistry<\/a> \/\n          <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/\">Cambridge International (CIE)<\/a> \/\n          <span>Topic 11 Group 17<\/span>\n        <\/nav>\n    <\/div>\n  <\/div>\n\n  <!-- INTRO -->\n  <section class=\"ols-cie11-intro\">\n    <div class=\"ols-cie11-container\">\n      <div class=\"ols-cie11-intro-inner\">\n        <div>\n          <div class=\"ols-cie11-eyebrow\">Cambridge International AS &amp; A Level Chemistry<\/div>\n          <h1>Topic 11<br>Group 17<\/h1>\n          <div class=\"ols-cie11-accent-bar\"><\/div>\n          <p class=\"ols-cie11-intro-lead\">Topic 11 covers the colours, volatility and bond strengths of chlorine, bromine and iodine, their relative reactivity as oxidising agents including the reactions with hydrogen and the thermal stability of the hydrogen halides, the halide ions as reducing agents with silver ions, ammonia and concentrated sulfuric acid, and the disproportionation reactions of chlorine with cold and hot sodium hydroxide and in water purification.<\/p>\n        <\/div>\n        <div class=\"ols-cie11-info-grid\">\n          <div class=\"ols-cie11-info-card\"><div class=\"ols-cie11-info-card-label\">Exam Papers<\/div><div class=\"ols-cie11-info-card-value\">Papers 1 &amp; 2<\/div><div class=\"ols-cie11-info-card-sub\">9701 AS Level<\/div><\/div>\n          <div class=\"ols-cie11-info-card\"><div class=\"ols-cie11-info-card-label\">Learning Outcomes<\/div><div class=\"ols-cie11-info-card-value\">11.1 &#8211; 11.4<\/div><div class=\"ols-cie11-info-card-sub\">10 outcomes covered<\/div><\/div>\n          <div class=\"ols-cie11-info-card\"><div class=\"ols-cie11-info-card-label\">Topic Parts<\/div><div class=\"ols-cie11-info-card-value\">4 pages<\/div><div class=\"ols-cie11-info-card-sub\">Revision notes available<\/div><\/div>\n          <div class=\"ols-cie11-info-card\"><div class=\"ols-cie11-info-card-label\">Exam Board<\/div><div class=\"ols-cie11-info-card-value\">Cambridge<\/div><div class=\"ols-cie11-info-card-sub\">9701 (2025 onwards)<\/div><\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <!-- TOPIC CARDS -->\n  <section class=\"ols-cie11-topics\">\n    <div class=\"ols-cie11-container\">\n      <div class=\"ols-cie11-section-header\">\n        <h2 class=\"ols-cie11-section-title\">Revision Notes<\/h2>\n        <p class=\"ols-cie11-section-sub\">Work through Topic 11 Group 17 in a structured sequence.<\/p>\n      <\/div>\n      <div class=\"ols-cie11-cards-grid\">\n\n        <!-- Card 1: Trends in the Halogens -->\n        <a class=\"ols-cie11-card ols-cie11-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/trends-in-the-halogens\/\">\n          <div class=\"ols-cie11-card-img-wrap\">\n            <div class=\"ols-cie11-visual ols-cie11-visual--ht\">\n              <div class=\"ols-cie11-visual-panel\">\n                <div class=\"ols-cie11-visual-kicker\">F\u2082 to I\u2082<\/div>\n                <div class=\"ols-cie11-visual-main\">Halogen<br>Trends<\/div>\n                <div class=\"ols-cie11-config-line\" aria-hidden=\"true\"><span>colour, volatility, electronegativity<\/span><\/div>\n              <\/div>\n            <\/div>\n            <div class=\"ols-cie11-card-num\">1<\/div>\n            <span class=\"ols-cie11-card-status ols-cie11-card-status--available\">Available<\/span>\n          <\/div>\n          <div class=\"ols-cie11-card-body\">\n            <p class=\"ols-cie11-card-title\">Trends in the Halogens<\/p>\n            <p class=\"ols-cie11-card-desc\">The trends in Group 17: states, colours, boiling points, electronegativity, reactivity and predictions for fluorine and astatine.<\/p>\n            <span class=\"ols-cie11-card-cta\">Start revising<svg viewBox=\"0 0 16 16\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 8h10M9 4l4 4-4 4\"><\/path><\/svg><\/span>\n          <\/div>\n        <\/a>\n\n        <!-- Card 2: Halogens as Oxidising Agents -->\n        <a class=\"ols-cie11-card ols-cie11-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/halogens-as-oxidising-agents\/\">\n          <div class=\"ols-cie11-card-img-wrap\">\n            <div class=\"ols-cie11-visual ols-cie11-visual--ho\">\n              <div class=\"ols-cie11-visual-panel\">\n                <div class=\"ols-cie11-visual-kicker\">Displacement<\/div>\n                <div class=\"ols-cie11-visual-main\">Oxidising<br>Agents<\/div>\n                <div class=\"ols-cie11-config-line\" aria-hidden=\"true\"><span>Cl\u2082 > Br\u2082 > I\u2082<\/span><\/div>\n              <\/div>\n            <\/div>\n            <div class=\"ols-cie11-card-num\">2<\/div>\n            <span class=\"ols-cie11-card-status ols-cie11-card-status--available\">Available<\/span>\n          <\/div>\n          <div class=\"ols-cie11-card-body\">\n            <p class=\"ols-cie11-card-title\">Halogens as Oxidising Agents<\/p>\n            <p class=\"ols-cie11-card-desc\">The halogens as oxidising agents: displacement reactions, colours in water and cyclohexane, reactions with metals and hydrogen, and the reactivity trend.<\/p>\n            <span class=\"ols-cie11-card-cta\">Start revising<svg viewBox=\"0 0 16 16\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 8h10M9 4l4 4-4 4\"><\/path><\/svg><\/span>\n          <\/div>\n        <\/a>\n\n        <!-- Card 3: Disproportionation Reactions of Chlorine -->\n        <a class=\"ols-cie11-card ols-cie11-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/disproportionation-reactions-of-chlorine\/\">\n          <div class=\"ols-cie11-card-img-wrap\">\n            <div class=\"ols-cie11-visual ols-cie11-visual--cd\">\n              <div class=\"ols-cie11-visual-panel\">\n                <div class=\"ols-cie11-visual-kicker\">Water and bleach<\/div>\n                <div class=\"ols-cie11-visual-main\">Chlorine<br>Reactions<\/div>\n                <div class=\"ols-cie11-config-line\" aria-hidden=\"true\"><span>Cl\u2082 + H\u2082O, Cl\u2082 + NaOH<\/span><\/div>\n              <\/div>\n            <\/div>\n            <div class=\"ols-cie11-card-num\">3<\/div>\n            <span class=\"ols-cie11-card-status ols-cie11-card-status--available\">Available<\/span>\n          <\/div>\n          <div class=\"ols-cie11-card-body\">\n            <p class=\"ols-cie11-card-title\">Disproportionation Reactions of Chlorine<\/p>\n            <p class=\"ols-cie11-card-desc\">The disproportionation of chlorine with water and with cold and hot alkali, bleach, water treatment and analogous halogen reactions.<\/p>\n            <span class=\"ols-cie11-card-cta\">Start revising<svg viewBox=\"0 0 16 16\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 8h10M9 4l4 4-4 4\"><\/path><\/svg><\/span>\n          <\/div>\n        <\/a>\n\n        <!-- Card 4: Halide Ions: Reducing Agents and Tests -->\n        <a class=\"ols-cie11-card ols-cie11-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/halide-ions-reducing-agents-and-tests\/\">\n          <div class=\"ols-cie11-card-img-wrap\">\n            <div class=\"ols-cie11-visual ols-cie11-visual--hi\">\n              <div class=\"ols-cie11-visual-panel\">\n                <div class=\"ols-cie11-visual-kicker\">Cl\u207b, Br\u207b, I\u207b<\/div>\n                <div class=\"ols-cie11-visual-main\">Halide<br>Ions<\/div>\n                <div class=\"ols-cie11-config-line\" aria-hidden=\"true\"><span>H\u2082SO\u2084, AgNO\u2083, NH\u2083<\/span><\/div>\n              <\/div>\n            <\/div>\n            <div class=\"ols-cie11-card-num\">4<\/div>\n            <span class=\"ols-cie11-card-status ols-cie11-card-status--available\">Available<\/span>\n          <\/div>\n          <div class=\"ols-cie11-card-body\">\n            <p class=\"ols-cie11-card-title\">Halide Ions: Reducing Agents and Tests<\/p>\n            <p class=\"ols-cie11-card-desc\">Halide ions: reducing power with concentrated sulfuric acid, the acidified silver nitrate test and ammonia, and the hydrogen halides with ammonia and water.<\/p>\n            <span class=\"ols-cie11-card-cta\">Start revising<svg viewBox=\"0 0 16 16\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 8h10M9 4l4 4-4 4\"><\/path><\/svg><\/span>\n          <\/div>\n        <\/a>\n\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <!-- SPECIFICATION -->\n  <section class=\"ols-cie11-spec-section\">\n    <div class=\"ols-cie11-container\">\n      <div class=\"ols-cie11-spec-wrap\">\n        <div class=\"ols-cie11-spec-pill\">Specification Coverage<\/div>\n        <h2 class=\"ols-cie11-spec-heading\">Topic 11 Group 17 &#8211; Cambridge International AS Level Chemistry<\/h2>\n        <p class=\"ols-cie11-spec-intro-text\">The following Cambridge learning outcomes state what candidates should be able to do. Wording is taken from the Cambridge International AS &amp; A Level Chemistry (9701) syllabus.<\/p>\n        <h3 class=\"ols-cie11-spec-group-title\">11.1 Physical properties of the Group 17 elements<\/h3>\n        <div class=\"ols-cie11-spec-rows\">\n          <div class=\"ols-cie11-spec-row ols-cie11-spec-row--light\"><div class=\"ols-cie11-spec-code\">11.1.1<\/div><div class=\"ols-cie11-spec-text\">describe the colours and the trend in volatility of chlorine, bromine and iodine<\/div><\/div>\n          <div class=\"ols-cie11-spec-row ols-cie11-spec-row--mid\"><div class=\"ols-cie11-spec-code ols-cie11-spec-code--mid\">11.1.2<\/div><div class=\"ols-cie11-spec-text\">describe and explain the trend in the bond strength of the halogen molecules<\/div><\/div>\n          <div class=\"ols-cie11-spec-row ols-cie11-spec-row--light\"><div class=\"ols-cie11-spec-code\">11.1.3<\/div><div class=\"ols-cie11-spec-text\">interpret the volatility of the elements in terms of instantaneous dipole\u2013induced dipole forces<\/div><\/div>\n        <\/div>\n\n        <h3 class=\"ols-cie11-spec-group-title\">11.2 The chemical properties of the elements and their hydrides<\/h3>\n        <div class=\"ols-cie11-spec-rows\">\n          <div class=\"ols-cie11-spec-row ols-cie11-spec-row--mid\"><div class=\"ols-cie11-spec-code ols-cie11-spec-code--mid\">11.2.1<\/div><div class=\"ols-cie11-spec-text\">describe the relative reactivity of the elements as oxidising agents<\/div><\/div>\n          <div class=\"ols-cie11-spec-row ols-cie11-spec-row--light\"><div class=\"ols-cie11-spec-code\">11.2.2<\/div><div class=\"ols-cie11-spec-text\">describe and explain the reactions of the elements with hydrogen<\/div><\/div>\n          <div class=\"ols-cie11-spec-row ols-cie11-spec-row--mid\"><div class=\"ols-cie11-spec-code ols-cie11-spec-code--mid\">11.2.3<\/div><div class=\"ols-cie11-spec-text\">describe and explain the relative thermal stabilities of the hydrogen halides in terms of bond strengths<\/div><\/div>\n        <\/div>\n\n        <h3 class=\"ols-cie11-spec-group-title\">11.3 Some reactions of the halide ions<\/h3>\n        <div class=\"ols-cie11-spec-rows\">\n          <div class=\"ols-cie11-spec-row ols-cie11-spec-row--light\"><div class=\"ols-cie11-spec-code\">11.3.1<\/div><div class=\"ols-cie11-spec-text\">describe the relative reactivity of halide ions as reducing agents<\/div><\/div>\n          <div class=\"ols-cie11-spec-row ols-cie11-spec-row--mid\"><div class=\"ols-cie11-spec-code ols-cie11-spec-code--mid\">11.3.2<\/div><div class=\"ols-cie11-spec-text\">describe and explain the reactions of halide ions with:<div class=\"ols-cie11-spec-sub-list\"><div class=\"ols-cie11-spec-sub-row\"><div class=\"ols-cie11-spec-sub-code\">a<\/div><div class=\"ols-cie11-spec-sub-text\">aqueous silver ions followed by aqueous ammonia<\/div><\/div><div class=\"ols-cie11-spec-sub-row\"><div class=\"ols-cie11-spec-sub-code\">b<\/div><div class=\"ols-cie11-spec-sub-text\">concentrated sulfuric acid, to include balanced chemical equations<\/div><\/div><\/div><\/div><\/div>\n        <\/div>\n\n        <h3 class=\"ols-cie11-spec-group-title\">11.4 The reactions of chlorine<\/h3>\n        <div class=\"ols-cie11-spec-rows\">\n          <div class=\"ols-cie11-spec-row ols-cie11-spec-row--light\"><div class=\"ols-cie11-spec-code\">11.4.1<\/div><div class=\"ols-cie11-spec-text\">describe and interpret, in terms of changes in oxidation number, the reactions of chlorine with cold and with hot aqueous sodium hydroxide, and recognise them as disproportionation reactions<\/div><\/div>\n          <div class=\"ols-cie11-spec-row ols-cie11-spec-row--mid\"><div class=\"ols-cie11-spec-code ols-cie11-spec-code--mid\">11.4.2<\/div><div class=\"ols-cie11-spec-text\">explain, including by use of an equation, the use of chlorine in water purification, to include the production of the active species HOCl and ClO\u207b which kill bacteria<\/div><\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"CollectionPage\",\n      \"@id\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/#webpage\",\n      \"url\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/\",\n      \"name\": \"Topic 11 Group 17 | Cambridge International AS Level Chemistry | Online Learning System\",\n      \"description\": \"Cambridge International AS Level Chemistry Topic 11 Group 17 revision notes: trends in the halogens, halogens as oxidising agents, disproportionation reactions of chlorine, halide ions: reducing agents and tests.\",\n      \"isPartOf\": {\n        \"@id\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/#website\"\n      },\n      \"breadcrumb\": {\n        \"@id\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/#breadcrumb\"\n      },\n      \"inLanguage\": \"en-GB\"\n    },\n    {\n      \"@type\": \"BreadcrumbList\",\n      \"@id\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/#breadcrumb\",\n      \"itemListElement\": [\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 1,\n          \"name\": \"Revision Notes\",\n          \"item\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 2,\n          \"name\": \"A Level Chemistry\",\n          \"item\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 3,\n          \"name\": \"Cambridge International (CIE)\",\n          \"item\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 4,\n          \"name\": \"Topic 11 Group 17\",\n          \"item\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/\"\n        }\n      ]\n    },\n    {\n      \"@type\": \"ItemList\",\n      \"@id\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/#topics\",\n      \"name\": \"Topic 11 Group 17 revision notes\",\n      \"itemListElement\": [\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 1,\n          \"item\": {\n            \"@type\": \"Course\",\n            \"name\": \"Trends in the Halogens\",\n            \"description\": \"Cambridge International A Level Chemistry revision notes on the trends in Group 17: states, colours, boiling points, electronegativity, reactivity and predictions for fluorine and astatine.\",\n            \"url\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/trends-in-the-halogens\/\"\n          }\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 2,\n          \"item\": {\n            \"@type\": \"Course\",\n            \"name\": \"Halogens as Oxidising Agents\",\n            \"description\": \"Cambridge International A Level Chemistry revision notes on the halogens as oxidising agents: displacement reactions, colours in water and cyclohexane, reactions with metals and hydrogen, and the reactivity trend.\",\n            \"url\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/halogens-as-oxidising-agents\/\"\n          }\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 3,\n          \"item\": {\n            \"@type\": \"Course\",\n            \"name\": \"Disproportionation Reactions of Chlorine\",\n            \"description\": \"Cambridge International A Level Chemistry revision notes on the disproportionation of chlorine with water and with cold and hot alkali, bleach, water treatment and analogous halogen reactions.\",\n            \"url\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/disproportionation-reactions-of-chlorine\/\"\n          }\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 4,\n          \"item\": {\n            \"@type\": \"Course\",\n            \"name\": \"Halide Ions: Reducing Agents and Tests\",\n            \"description\": \"Cambridge International A Level Chemistry revision notes on halide ions: reducing power with concentrated sulfuric acid, the acidified silver nitrate test and ammonia, and the hydrogen halides with ammonia and water.\",\n            \"url\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-11-group-17\/halide-ions-reducing-agents-and-tests\/\"\n          }\n        }\n      ]\n    }\n  ]\n}\n<\/script>\n\n<\/div>\n\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Revision Notes \/ A Level Chemistry \/ Cambridge International (CIE) \/ Topic 11 Group 17 Cambridge International AS &amp; A Level Chemistry Topic 11Group 17 Topic 11 covers the colours, volatility and bond strengths of chlorine, bromine and iodine, their relative reactivity as oxidising agents including the reactions with hydrogen and the thermal stability of [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"parent":7150,"menu_order":11,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-10581","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/pages\/10581","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/comments?post=10581"}],"version-history":[{"count":0,"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/pages\/10581\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/pages\/7150"}],"wp:attachment":[{"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/media?parent=10581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}